Depends on tire option but, The recommended tire pressure is on the sticker on the d/s door jam or vehicle manual.
In a 2003 Lincoln LS the battery is in the trunk, next to the spare tire.
In the trunk with the spare tire
its under the car behind the drivers side front tire ,,air compresser
5x108
In the trunk next to the spare tire.
in the truck by the spare tire compartment
In the transmission
235/50R-17
Check the trunk in the spare tire wheel well.
20
In the trunk, next to the spare tire.